Early days but appears to work

I've only been using niplettes for about 4 days, but have even already started to see results. I'm quite confident that in a month or so my nipples will be transformed similarly to other reviewers I have read elsewhere. The only thing is, the product has made my nipples tender which means they are too painful for any sexual stimulation. This could be inconvenient for some people. During the day I typically can't keep them on for the whole 8 hours (recommended) and I haven't tried to sleep in them yet.